Quote:
Originally Posted by TLud
Good question. I already emailed Mike about this and I'll see what he says. When I was watching them tune it, I attributed it to the measurements being taken with a tailpipe sniffer as opposed to a pre-cat bung, which would make the A/F ratio read high for both stock and tuned, especially down low. This makes a big difference on cars running two sets of stock cats, and I suspect that I'm not running nearly as lean as the chart would suggest, but we'll see what Mike has to say.
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Please post the response here. Your review got me to the top of the fence. I'm almost ready to jump to the other side. Looking forward to what Mike and Jeremy say.
